From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: [RFC PATCH 2/3] ARM: gic: allow irq_start to be 0 Date: Tue, 9 Aug 2011 15:16:59 -0500 Message-ID: <1312921020-6820-3-git-send-email-robherring2@gmail.com> References: <1312921020-6820-1-git-send-email-robherring2@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1312921020-6820-1-git-send-email-robherring2-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org Sender: devicetree-discuss-bounces+gldd-devicetree-discuss=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org To: grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org Cc: devicetree-discuss-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, Rob Herring , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org From: Rob Herring There's really no need to set irq_start per platform for the primary gic. The SGIs and PPIs are not handled as normal irqs, so how irqs 0-31 are setup doesn't really matter. So allow irq_start to be set to 0 to match the linux irq numbering. Signed-off-by: Rob Herring --- arch/arm/common/gic.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c index 3227ca9..f13298e 100644 --- a/arch/arm/common/gic.c +++ b/arch/arm/common/gic.c @@ -353,7 +353,7 @@ void __init gic_init(unsigned int gic_nr, unsigned int irq_start, gic = &gic_data[gic_nr]; gic->dist_base = dist_base; gic->cpu_base = cpu_base; - gic->irq_offset = (irq_start - 1) & ~31; + gic->irq_offset = irq_start ? (irq_start - 1) & ~31 : 0; if (gic_nr == 0) gic_cpu_base_addr = cpu_base; -- 1.7.4.1